Optimization Design of Casting Process of Ductile Iron Cylinder Block of Large Marine Diesel Engine
Author of the article:YIN Yanpu;CHEN Yong;REN Wenguang;WENG Ye;TAO Weisheng;MAO Linxin
Author's Workplace：CSSC Marine Power Components Co.,Ltd.,Shanghai 201306,China;Hudong Heavy Machinery Co.,Ltd.,Shanghai 200129,China
Key Words：cylinder block of diesel engine ductile iron gating and riser system spheroidization inoculation treatment
Abstract：The casting difficulties and possible defects of nodular cast iron fuselage of large Marine diesel engine were analyzed.The main contents and methods of optimal casting process design were presented.The casting position and molding method were determined,casting process parameters were selected,and the sprue riser system design and numerical simulation were optimized.The spheroidization inoculation process was optimized.The results show that the castings conforming to the requirements of drawings and technical documents have been produced stably according to the proposed design ideas and methods,and the experience has been accumulated for the standardization and design of similar casting process.
